Win32 Disk Imager Icon

Win32 Disk Imager


A tool for writing images to USB sticks or SD/CF cards

4.1 Stars (51)
64,088 Downloads (This Week)
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This program is designed to write a raw disk image to a removable device or backup a removable device to a raw image file. It is very useful for embedded development, namely Arm development projects (Android, Ubuntu on Arm, etc). Anyone is free to branch and modify this program. Patches are always welcome.

Warning: Issues have been reported when using to write to USB Floppy drives (and occasionally other USB devices, although very rare). It is highly recommended that before an image is written to a device, the user should do a Read to a temporary file first. If this fails, please report the failure along with your system information (file a new bug, NOT a review).

Please do not use the reviews area for questions or bugs, as I have no way of responding to them.

Bear with us as we transition from

Win32 Disk Imager Web Site


  • Raw reading and writing to removable media


User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
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User Reviews

  • thriftee
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I think it changes the size of the SD card to the size of whatever you write to it, so if you put a 750 mb iso onto an 8 gb flashdrive, it reduces the size of the flashdrive to 750 mb. I found a way to reformat it back to 8 gb. Reformat it with antiX linux. I found out I had messed up 4 of my flashdrives with it so I went through all of them and reformatted all the ones that were "downsized". Maybe the program isn't intended to be used with flashdrives?

    Posted 12/31/2014
  • desha01
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    thanks a lot

    Posted 12/14/2014
  • nightsoular
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    version 0.9.5. sobre win 8 64 bits. Me dejo inservible un pendrive de 8GB, no se puede formatear, cambio la capacidad. Volví a pasarle la misma versión con otra imagen distinta y dijo q escribió todo y lo mismo no lo lee, ni en el explorador de archivos ni booteando desde el pendrive. No solo no me sirvió para lo q quería sino q me daño el pendrive. Actualización: Use el EaseUS Partition Master Free para eliminar particiones y dejar el tamaño original del pendrive. Actualización2: Me aclararon algo q suponía, no es error del programa y tampoco me dejo inservible el pendrive. Sino que el programa al grabar la imagen raw modifica la tabla de particiones ( Para volver a usar el pendrive no alcanza con un formateo, sino hay q armar de vuelta la tabla de particiones para usar el pendrive con toda la capacidad. Además la no lectura del contenido grabado en el pendrive era por no instalar los drivers necesarios para leer particion ext3 en Win8 que era lo q contenía la .img grabada. Me parece muy baja la clasificación que había puesto así q la subo. Gracias por su respuesta.

    Posted 11/24/2014
  • nuncio
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I use this to archive and duplicate main system disks on micro SD cards. This way I have a consistent disk image that can be version controlled. Thanks!

    Posted 11/19/2014
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Advanced End Users

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